Bird bath



FIG. 1 is a perspective view of the bird bath showing my new design.

FIG. 2 is a side view of the bird bath;

FIG. 3 is a top view of the bird bath; and,

FIG. 4 is a bottom plan view of the bird bath.

The broken lines shown in FIGS. 1, 2, 3 and 4 are for illustrativepurposes only and form no part of the claimed design.

The ornamental design for a bird bath, as substantially shown anddescribed.